\Leftrightarrow (2x+3y)^{2}+4\left | y-2 \right |=0
Do \left\{\begin{matrix} (2x+3y)^{2})\geq 0\\ 4\left | y-z \right |\geq 0 \end{matrix}\right. \forall x,y,z
\Rightarrow \left\{\begin{matrix} 2x+3y=0\\ y-2=0 \end{matrix}\right. \Leftrightarrow \left\{\begin{matrix} y=2\\ x=-2...